如图,
内接于
,直线
与
相切于点B,若
,则
=_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ccea461315a9d05aa0193b937d4bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ccea461315a9d05aa0193b937d4bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d9d406349f34e3bc76655ac1f682fa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67800256d1b208743f9b0e443076f071.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/91e0250d-1f2d-4f98-a3bd-52afe004f0d6.png?resizew=135)
22-23九年级上·山西阳泉·期中 查看更多[3]
山西省阳泉市矿区2022-2023学年九年级上学期期中数学试卷(已下线)第16讲 直线和圆的位置关系-【帮课堂】2022-2023学年九年级数学下册同步精品讲义(北师大版)2022年安徽省合肥市五十中新校中考三模数学试题
更新时间:2023-01-02 15:44:38
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【推荐2】如图,A,B是
上的两点,
,点C在优弧
上,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c289e30378487b82b036e846f4d85e4b.png)
______ 度![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870fa9709a70b3d99118b4b671fb016f.png)
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【推荐1】如图,
的半径
垂直于弦
,过点
作
的切线交
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等于__________ 度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
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【推荐2】如图,AB是⊙O的直径,BC与⊙O相切于点B,AC交⊙O于点D,若∠ACB=50°,则∠BOD=______ 度.
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